Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Data tem um Against menor que 21 e um Status de segundo teste?
 ###Tabelas: CREATE TABLE mixed_team_event (mixed_team_event_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Female épée VARCHAR, Male épée VARCHAR, Female foil VARCHAR, Male foil VARCHAR, Female saber VARCHAR, Male saber VARCHAR, Average fencers rank VARCHAR, Initial Team rank INT) CREATE TABLE matches (matches_id AUTO_INCREMENT PRIMARY KEY, Opposing Team VARCHAR, Against INT, Date VARCHAR, Venue VARCHAR, Status VARCHAR) CREATE TABLE roster_and_rotation (roster_and_rotation_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Number INT, Team Position INT, Height VARCHAR, Year VARCHAR) CREATE TABLE 80_million_to_99_million_records (80_million_to_99_million_records_id AUTO_INCREMENT PRIMARY KEY, Artist VARCHAR, Country of origin VARCHAR, Period active VARCHAR, Release-year of first charted record INT, Genre VARCHAR, Claimed sales VARCHAR) CREATE TABLE list_of_urban_settlements_in_vojvodina (list_of_urban_settlements_in_vojvodina_id AUTO_INCREMENT PRIMARY KEY, Urban settlement VARCHAR, Cyrillic Name VARCHAR, City / municipality VARCHAR, District VARCHAR, Population (1991) INT, Population (2002) INT, Population (2011) INT)  
SELECT Date FROM matches WHERE Against < 21 AND Status = second test